Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * sound/oss/sb_card.c |
| 3 | * |
| 4 | * Detection routine for the ISA Sound Blaster and compatable sound |
| 5 | * cards. |
| 6 | * |
| 7 | * This file is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) |
| 8 | * Version 2 (June 1991). See the "COPYING" file distributed with this |
| 9 | * software for more info. |
| 10 | * |
| 11 | * This is a complete rewrite of the detection routines. This was |
| 12 | * prompted by the PnP API change during v2.5 and the ugly state the |
| 13 | * code was in. |
| 14 | * |
| 15 | * Copyright (C) by Paul Laufer 2002. Based on code originally by |
| 16 | * Hannu Savolainen which was modified by many others over the |
| 17 | * years. Authors specifically mentioned in the previous version were: |
| 18 | * Daniel Stone, Alessandro Zummo, Jeff Garzik, Arnaldo Carvalho de |
| 19 | * Melo, Daniel Church, and myself. |
| 20 | * |
| 21 | * 02-05-2003 Original Release, Paul Laufer <paul@laufernet.com> |
| 22 | * 02-07-2003 Bug made it into first release. Take two. |
| 23 | */ |
| 24 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | #include <linux/module.h> |
| 26 | #include <linux/moduleparam.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 27 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | #include <linux/init.h> |
| 29 | #include "sound_config.h" |
| 30 | #include "sb_mixer.h" |
| 31 | #include "sb.h" |
| 32 | #ifdef CONFIG_PNP |
| 33 | #include <linux/pnp.h> |
| 34 | #endif /* CONFIG_PNP */ |
| 35 | #include "sb_card.h" |
| 36 | |
| 37 | MODULE_DESCRIPTION("OSS Soundblaster ISA PnP and legacy sound driver"); |
| 38 | MODULE_LICENSE("GPL"); |
| 39 | |
| 40 | extern void *smw_free; |
| 41 | |
| 42 | static int __initdata mpu_io = 0; |
| 43 | static int __initdata io = -1; |
| 44 | static int __initdata irq = -1; |
| 45 | static int __initdata dma = -1; |
| 46 | static int __initdata dma16 = -1; |
| 47 | static int __initdata type = 0; /* Can set this to a specific card type */ |
| 48 | static int __initdata esstype = 0; /* ESS chip type */ |
| 49 | static int __initdata acer = 0; /* Do acer notebook init? */ |
| 50 | static int __initdata sm_games = 0; /* Logitech soundman games? */ |
| 51 | |
| 52 | static struct sb_card_config *legacy = NULL; |
| 53 | |
| 54 | #ifdef CONFIG_PNP |
Bjorn Helgaas | be54414 | 2006-03-27 01:17:16 -0800 | [diff] [blame] | 55 | static int pnp_registered; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | static int __initdata pnp = 1; |
| 57 | /* |
| 58 | static int __initdata uart401 = 0; |
| 59 | */ |
| 60 | #else |
| 61 | static int __initdata pnp = 0; |
| 62 | #endif |
| 63 | |
| 64 | module_param(io, int, 000); |
| 65 | MODULE_PARM_DESC(io, "Soundblaster i/o base address (0x220,0x240,0x260,0x280)"); |
| 66 | module_param(irq, int, 000); |
| 67 | MODULE_PARM_DESC(irq, "IRQ (5,7,9,10)"); |
| 68 | module_param(dma, int, 000); |
| 69 | MODULE_PARM_DESC(dma, "8-bit DMA channel (0,1,3)"); |
| 70 | module_param(dma16, int, 000); |
| 71 | MODULE_PARM_DESC(dma16, "16-bit DMA channel (5,6,7)"); |
| 72 | module_param(mpu_io, int, 000); |
| 73 | MODULE_PARM_DESC(mpu_io, "MPU base address"); |
| 74 | module_param(type, int, 000); |
| 75 | MODULE_PARM_DESC(type, "You can set this to specific card type (doesn't " \ |
| 76 | "work with pnp)"); |
| 77 | module_param(sm_games, int, 000); |
| 78 | MODULE_PARM_DESC(sm_games, "Enable support for Logitech soundman games " \ |
| 79 | "(doesn't work with pnp)"); |
| 80 | module_param(esstype, int, 000); |
| 81 | MODULE_PARM_DESC(esstype, "ESS chip type (doesn't work with pnp)"); |
| 82 | module_param(acer, int, 000); |
| 83 | MODULE_PARM_DESC(acer, "Set this to detect cards in some ACER notebooks "\ |
| 84 | "(doesn't work with pnp)"); |
| 85 | |
| 86 | #ifdef CONFIG_PNP |
| 87 | module_param(pnp, int, 000); |
| 88 | MODULE_PARM_DESC(pnp, "Went set to 0 will disable detection using PnP. "\ |
| 89 | "Default is 1.\n"); |
| 90 | /* Not done yet.... */ |
| 91 | /* |
| 92 | module_param(uart401, int, 000); |
| 93 | MODULE_PARM_DESC(uart401, "When set to 1, will attempt to detect and enable"\ |
| 94 | "the mpu on some clones"); |
| 95 | */ |
| 96 | #endif /* CONFIG_PNP */ |
| 97 | |
| 98 | /* OSS subsystem card registration shared by PnP and legacy routines */ |
| 99 | static int sb_register_oss(struct sb_card_config *scc, struct sb_module_options *sbmo) |
| 100 | { |
| 101 | if (!request_region(scc->conf.io_base, 16, "soundblaster")) { |
| 102 | printk(KERN_ERR "sb: ports busy.\n"); |
| 103 | kfree(scc); |
| 104 | return -EBUSY; |
| 105 | } |
| 106 | |
| 107 | if (!sb_dsp_detect(&scc->conf, 0, 0, sbmo)) { |
| 108 | release_region(scc->conf.io_base, 16); |
| 109 | printk(KERN_ERR "sb: Failed DSP Detect.\n"); |
| 110 | kfree(scc); |
| 111 | return -ENODEV; |
| 112 | } |
| 113 | if(!sb_dsp_init(&scc->conf, THIS_MODULE)) { |
| 114 | printk(KERN_ERR "sb: Failed DSP init.\n"); |
| 115 | kfree(scc); |
| 116 | return -ENODEV; |
| 117 | } |
| 118 | if(scc->mpucnf.io_base > 0) { |
| 119 | scc->mpu = 1; |
| 120 | printk(KERN_INFO "sb: Turning on MPU\n"); |
| 121 | if(!probe_sbmpu(&scc->mpucnf, THIS_MODULE)) |
| 122 | scc->mpu = 0; |
| 123 | } |
| 124 | |
| 125 | return 1; |
| 126 | } |
| 127 | |
| 128 | static void sb_unload(struct sb_card_config *scc) |
| 129 | { |
| 130 | sb_dsp_unload(&scc->conf, 0); |
| 131 | if(scc->mpu) |
| 132 | unload_sbmpu(&scc->mpucnf); |
| 133 | kfree(scc); |
| 134 | } |
| 135 | |
| 136 | /* Register legacy card with OSS subsystem */ |
Bjorn Helgaas | be54414 | 2006-03-27 01:17:16 -0800 | [diff] [blame] | 137 | static int __init sb_init_legacy(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | { |
| 139 | struct sb_module_options sbmo = {0}; |
| 140 | |
Robert P. J. Day | 3159f06 | 2007-02-14 00:33:16 -0800 | [diff] [blame] | 141 | if((legacy = kzalloc(sizeof(struct sb_card_config), GFP_KERNEL)) == NULL) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | printk(KERN_ERR "sb: Error: Could not allocate memory\n"); |
| 143 | return -ENOMEM; |
| 144 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | |
| 146 | legacy->conf.io_base = io; |
| 147 | legacy->conf.irq = irq; |
| 148 | legacy->conf.dma = dma; |
| 149 | legacy->conf.dma2 = dma16; |
| 150 | legacy->conf.card_subtype = type; |
| 151 | |
| 152 | legacy->mpucnf.io_base = mpu_io; |
| 153 | legacy->mpucnf.irq = -1; |
| 154 | legacy->mpucnf.dma = -1; |
| 155 | legacy->mpucnf.dma2 = -1; |
| 156 | |
| 157 | sbmo.esstype = esstype; |
| 158 | sbmo.sm_games = sm_games; |
| 159 | sbmo.acer = acer; |
| 160 | |
| 161 | return sb_register_oss(legacy, &sbmo); |
| 162 | } |
| 163 | |
| 164 | #ifdef CONFIG_PNP |
| 165 | |
| 166 | /* Populate the OSS subsystem structures with information from PnP */ |
| 167 | static void sb_dev2cfg(struct pnp_dev *dev, struct sb_card_config *scc) |
| 168 | { |
| 169 | scc->conf.io_base = -1; |
| 170 | scc->conf.irq = -1; |
| 171 | scc->conf.dma = -1; |
| 172 | scc->conf.dma2 = -1; |
| 173 | scc->mpucnf.io_base = -1; |
| 174 | scc->mpucnf.irq = -1; |
| 175 | scc->mpucnf.dma = -1; |
| 176 | scc->mpucnf.dma2 = -1; |
| 177 | |
| 178 | /* All clones layout their PnP tables differently and some use |
| 179 | different logical devices for the MPU */ |
| 180 | if(!strncmp("CTL",scc->card_id,3)) { |
| 181 | scc->conf.io_base = pnp_port_start(dev,0); |
| 182 | scc->conf.irq = pnp_irq(dev,0); |
| 183 | scc->conf.dma = pnp_dma(dev,0); |
| 184 | scc->conf.dma2 = pnp_dma(dev,1); |
| 185 | scc->mpucnf.io_base = pnp_port_start(dev,1); |
| 186 | return; |
| 187 | } |
| 188 | if(!strncmp("tBA",scc->card_id,3)) { |
| 189 | scc->conf.io_base = pnp_port_start(dev,0); |
| 190 | scc->conf.irq = pnp_irq(dev,0); |
| 191 | scc->conf.dma = pnp_dma(dev,0); |
| 192 | scc->conf.dma2 = pnp_dma(dev,1); |
| 193 | return; |
| 194 | } |
| 195 | if(!strncmp("ESS",scc->card_id,3)) { |
| 196 | scc->conf.io_base = pnp_port_start(dev,0); |
| 197 | scc->conf.irq = pnp_irq(dev,0); |
| 198 | scc->conf.dma = pnp_dma(dev,0); |
| 199 | scc->conf.dma2 = pnp_dma(dev,1); |
| 200 | scc->mpucnf.io_base = pnp_port_start(dev,2); |
| 201 | return; |
| 202 | } |
| 203 | if(!strncmp("CMI",scc->card_id,3)) { |
| 204 | scc->conf.io_base = pnp_port_start(dev,0); |
| 205 | scc->conf.irq = pnp_irq(dev,0); |
| 206 | scc->conf.dma = pnp_dma(dev,0); |
| 207 | scc->conf.dma2 = pnp_dma(dev,1); |
| 208 | return; |
| 209 | } |
| 210 | if(!strncmp("RWB",scc->card_id,3)) { |
| 211 | scc->conf.io_base = pnp_port_start(dev,0); |
| 212 | scc->conf.irq = pnp_irq(dev,0); |
| 213 | scc->conf.dma = pnp_dma(dev,0); |
| 214 | return; |
| 215 | } |
| 216 | if(!strncmp("ALS",scc->card_id,3)) { |
| 217 | if(!strncmp("ALS0007",scc->card_id,7)) { |
| 218 | scc->conf.io_base = pnp_port_start(dev,0); |
| 219 | scc->conf.irq = pnp_irq(dev,0); |
| 220 | scc->conf.dma = pnp_dma(dev,0); |
| 221 | } else { |
| 222 | scc->conf.io_base = pnp_port_start(dev,0); |
| 223 | scc->conf.irq = pnp_irq(dev,0); |
| 224 | scc->conf.dma = pnp_dma(dev,1); |
| 225 | scc->conf.dma2 = pnp_dma(dev,0); |
| 226 | } |
| 227 | return; |
| 228 | } |
| 229 | if(!strncmp("RTL",scc->card_id,3)) { |
| 230 | scc->conf.io_base = pnp_port_start(dev,0); |
| 231 | scc->conf.irq = pnp_irq(dev,0); |
| 232 | scc->conf.dma = pnp_dma(dev,1); |
| 233 | scc->conf.dma2 = pnp_dma(dev,0); |
| 234 | } |
| 235 | } |
| 236 | |
Bjorn Helgaas | be54414 | 2006-03-27 01:17:16 -0800 | [diff] [blame] | 237 | static unsigned int sb_pnp_devices; |
| 238 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | /* Probe callback function for the PnP API */ |
| 240 | static int sb_pnp_probe(struct pnp_card_link *card, const struct pnp_card_device_id *card_id) |
| 241 | { |
| 242 | struct sb_card_config *scc; |
| 243 | struct sb_module_options sbmo = {0}; /* Default to 0 for PnP */ |
| 244 | struct pnp_dev *dev = pnp_request_card_device(card, card_id->devs[0].id, NULL); |
| 245 | |
| 246 | if(!dev){ |
| 247 | return -EBUSY; |
| 248 | } |
| 249 | |
Robert P. J. Day | 3159f06 | 2007-02-14 00:33:16 -0800 | [diff] [blame] | 250 | if((scc = kzalloc(sizeof(struct sb_card_config), GFP_KERNEL)) == NULL) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 251 | printk(KERN_ERR "sb: Error: Could not allocate memory\n"); |
| 252 | return -ENOMEM; |
| 253 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | |
| 255 | printk(KERN_INFO "sb: PnP: Found Card Named = \"%s\", Card PnP id = " \ |
| 256 | "%s, Device PnP id = %s\n", card->card->name, card_id->id, |
| 257 | dev->id->id); |
| 258 | |
| 259 | scc->card_id = card_id->id; |
| 260 | scc->dev_id = dev->id->id; |
| 261 | sb_dev2cfg(dev, scc); |
| 262 | |
| 263 | printk(KERN_INFO "sb: PnP: Detected at: io=0x%x, irq=%d, " \ |
| 264 | "dma=%d, dma16=%d\n", scc->conf.io_base, scc->conf.irq, |
| 265 | scc->conf.dma, scc->conf.dma2); |
| 266 | |
| 267 | pnp_set_card_drvdata(card, scc); |
Bjorn Helgaas | be54414 | 2006-03-27 01:17:16 -0800 | [diff] [blame] | 268 | sb_pnp_devices++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | |
| 270 | return sb_register_oss(scc, &sbmo); |
| 271 | } |
| 272 | |
| 273 | static void sb_pnp_remove(struct pnp_card_link *card) |
| 274 | { |
| 275 | struct sb_card_config *scc = pnp_get_card_drvdata(card); |
| 276 | |
| 277 | if(!scc) |
| 278 | return; |
| 279 | |
| 280 | printk(KERN_INFO "sb: PnP: Removing %s\n", scc->card_id); |
| 281 | |
| 282 | sb_unload(scc); |
| 283 | } |
| 284 | |
| 285 | static struct pnp_card_driver sb_pnp_driver = { |
| 286 | .name = "OSS SndBlstr", /* 16 character limit */ |
| 287 | .id_table = sb_pnp_card_table, |
| 288 | .probe = sb_pnp_probe, |
| 289 | .remove = sb_pnp_remove, |
| 290 | }; |
| 291 | MODULE_DEVICE_TABLE(pnp_card, sb_pnp_card_table); |
| 292 | #endif /* CONFIG_PNP */ |
| 293 | |
Randy Dunlap | 10c86be | 2007-07-01 12:06:37 -0700 | [diff] [blame] | 294 | static void sb_unregister_all(void) |
Bjorn Helgaas | be54414 | 2006-03-27 01:17:16 -0800 | [diff] [blame] | 295 | { |
| 296 | #ifdef CONFIG_PNP |
| 297 | if (pnp_registered) |
| 298 | pnp_unregister_card_driver(&sb_pnp_driver); |
| 299 | #endif |
| 300 | } |
| 301 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 302 | static int __init sb_init(void) |
| 303 | { |
| 304 | int lres = 0; |
| 305 | int pres = 0; |
| 306 | |
| 307 | printk(KERN_INFO "sb: Init: Starting Probe...\n"); |
| 308 | |
| 309 | if(io != -1 && irq != -1 && dma != -1) { |
| 310 | printk(KERN_INFO "sb: Probing legacy card with io=%x, "\ |
| 311 | "irq=%d, dma=%d, dma16=%d\n",io, irq, dma, dma16); |
| 312 | lres = sb_init_legacy(); |
| 313 | } else if((io != -1 || irq != -1 || dma != -1) || |
| 314 | (!pnp && (io == -1 && irq == -1 && dma == -1))) |
| 315 | printk(KERN_ERR "sb: Error: At least io, irq, and dma "\ |
| 316 | "must be set for legacy cards.\n"); |
| 317 | |
| 318 | #ifdef CONFIG_PNP |
| 319 | if(pnp) { |
Bjorn Helgaas | be54414 | 2006-03-27 01:17:16 -0800 | [diff] [blame] | 320 | int err = pnp_register_card_driver(&sb_pnp_driver); |
| 321 | if (!err) |
| 322 | pnp_registered = 1; |
| 323 | pres = sb_pnp_devices; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | } |
| 325 | #endif |
| 326 | printk(KERN_INFO "sb: Init: Done\n"); |
| 327 | |
| 328 | /* If either PnP or Legacy registered a card then return |
| 329 | * success */ |
Bjorn Helgaas | be54414 | 2006-03-27 01:17:16 -0800 | [diff] [blame] | 330 | if (pres == 0 && lres <= 0) { |
| 331 | sb_unregister_all(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | return -ENODEV; |
| 333 | } |
| 334 | return 0; |
| 335 | } |
| 336 | |
| 337 | static void __exit sb_exit(void) |
| 338 | { |
| 339 | printk(KERN_INFO "sb: Unloading...\n"); |
| 340 | |
| 341 | /* Unload legacy card */ |
| 342 | if (legacy) { |
| 343 | printk (KERN_INFO "sb: Unloading legacy card\n"); |
| 344 | sb_unload(legacy); |
| 345 | } |
| 346 | |
Bjorn Helgaas | be54414 | 2006-03-27 01:17:16 -0800 | [diff] [blame] | 347 | sb_unregister_all(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | |
Jesper Juhl | 457d3d43 | 2006-03-28 01:56:49 -0800 | [diff] [blame] | 349 | vfree(smw_free); |
| 350 | smw_free = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | } |
| 352 | |
| 353 | module_init(sb_init); |
| 354 | module_exit(sb_exit); |